Rotatable cylinder.



F. H. HARDY.

ROTATABLE CYLINDER.

APPLICATION FILED 1AN.I9. I918.

Patented Oct. 15, 1918.

"State of Massachuetts, have invented ce'rri nirn FRANKI H. HARDY, Y or ANDOVER, MASSACHUSETTS.

RoTAiSABLEoYLINDERQ I Tqall uihom it'mdg camemr g Be it knownthat I, ERANK'H. HARDY; a

citizen of the United States, I residing 'at Andover, in the county of 'Middlesex; and

tain new and usefullmprovementsin1R0- tatable Cylinders, of which the following is a specification, referencebeing'had' therein to the accompanying drawings. i

My invention relates to means for securely fixing a journal at each end of a cylinder;

are known as furnisher brushes which are cylindrical, and are used to supply liquid dye to "print-cloth rolls.

. Heretofore'these brushes have been tufted chinery, but it has been impossible to 'provide the long and hollow cylindrical wooden roll, with a journal at each end that could be successfully used for any reasonable length of time. The best method known has been to use two separate journals, each having a circular plate set into a circular seat in the end of the cylinder, and there secured by long screws passing through holes in the plate, longitudinally into the end portion of the cylinder; but it Was found that the screws soon worked loose, and the necessarily frequent readjustment of plates and screws in the ends of the cylinder, not only destroyed the ends of the cylinder, but rendered brushes, so constructed, unsalable to possible users.

Now by means of my invention the jour nal members may be secured to the end portions of the cylinder, without the use of screws or bolts of any kind; in fact they are secured from the inside of the cylinder rather than from the outside.

These journals can be used over and over again with new brushes. They may be removed from a brush with great ease and speed; and may be as readily assembled, for example, with a new brush; all with a resulting saving of labor, and cost of material; and still further, they are cheaper to manufacture; and because of them, a machine-made brush, otherwise a failure because of faulty means for securing them to the cylinder, is made one of great value, especially as the resulting complete brush is cheaper to make. I

In the drawing illustrating the principle of my invention and the best mode now Specification ofL ette'rs'Patent. t t d t, 15,191

Application filed January 19,1918. "'Ser ia1No.212,777.

' Figure .1 is an elevation of a cylinder brush provided with my invention.

Fig. is alongitudinal section ofthe same, "'enlargedand broken *away to "show the cotiperatingparts.

'Fig. 3 shows 7 in perspective one journal member, and binding rod; while 4 illustrates in perspective, the various parts, -in'-alinement,*and ready to be but it is'particularly concerned with 'what Inovedtoward' each'other, and secured together 'in 'ope'rativegposition.

In the present embodiment of my inventi-0111' provide a wooden cylinder 1," preferably made of rock maple. It is turned to s1ze,; bored centrally and recessed in its -op- "p'o'site ends, in an manner that will appear clearly, later. Radial holes 2 are bored in the surface of the cylinder, for the reception of tufts of bristles 3; after which, by a suitable brush-drawing machine, the tufts are inserted into the holes and there secured by wire staples 4.

A driving journal member 5 to be mounted in one of the recesses in the roll, is circular in cross-section. and consists of a journal 6, a flange 7 and collar 8 with'inwardly eX- tending bosses 9. In the longitudinal axis of the collar, is a slightly tapered threaded hole for the reception of a correspondingly threaded binding rod 11, as a piece of gas pipe; while the opposite end 12 of the bind- 111g rod is similarly threaded to engage a second journal member 13, like the driving journal member 5, with a flange l4 and a collar 15, but no bosses, and having no provision to receive a pulley. The diameter of the collar of each journal member is the same as that of the longitudinal hole 16 through the cylinder, whose end portions are so recessed see Figs. 2, 3 and 4, as to conform to, and be acounter-part of, the respective adjacent shapes of the collar, bosses and flan es found in the driving journal member and the second journal member, and being of such depth that the outside face of each flange is flush with the end face of the cylindrical wooden brush roll.

. Now to assemble the various parts of my invention, the driving journal member 5 and their seats in the adjacent recess; after which time, the second journal member 13 is screwed onto the free end threaded portion 12 of the binding rod at the opposite end of the cylinder, until the collar and flange find their seats in the hole and the recess in the I adjacent end of the cylinder. By giving a hard turn to the second journal member 13, as by means of a wrench, the two journal members and the wooden cylindrical roll may become absolutely rigidly bound together, longitudinally and rotatively; and for all practical purposes become a unitary structure, with no. opportunity for the liquid dyes, furnished by the roll, to afl'ect in any way the mechanical means for securing the journals to the roll, as would bethe case, were there screwholes in the flange, through ywhich the liquid dye could pass, and begin to rot the wood around the flange screws.

In short, I have provided a roll of any length with demountable end journals, all

bound rigidly together by mechanical means, located entirely within the roll, and

protected'from injuriou influences outside ofthe roll.

Desiring to protect my invention in the broadest manner legally possible,

What I claim is A cylinder with a longitudinal hole therethrough; two separate journal members each having a circular collar thereon fitting into the two end portions of said hole; a boss connected with one of said collars, and a corresponding recess cut in the end portion of said cylinder for the reception of said boss, to bindthe cylinder and the j ounal together rotatively; a binding rod, of a diam-v eter smaller than that of the said hole in the" cylinder, and provided with threaded means to engage corresponding threaded means in the two collars, 5 to bind the two journal members and cylinder together, longitudinally.

In testimony vwhereof I hereunto affix my signature.

FRANK H. HARD Copies of this; patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). C. 

